JPS63263515A - Cursor mobile key control system - Google Patents

Abstract

PURPOSE:To improve the operability of a data input device such as a Japanese language word processor by freely controlling the moving direction of a cursor on a display device by a controller based on the combination and the time difference of depression between two cursor vertical and horizontal move keys. CONSTITUTION:A keyboard 1 is provided with four cursor mobile keys 10 which instruct the movement of a cursor 60 in four; upward, downward, right, and left directions on a display device, and the make data is outputted at the time of depression of keys 10, and the break data is outputted at the time of release of keys 10. A controller 2 stores information of the key code based on output data from keys 10 on the keyboard 1 and controls movement of the cursor 60 on the display device based on the order and the time difference of depression between two cursor move keys 10 which do not indicate opposite directions out of four cursor move keys 10. Thus, the cursor is freely moved by a user to position the cursor to an arbitrary position on the display device, and the operability of a data input device with the keyboard input as the center such as a Japanese language word processor is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a cursor movement key control system, and particularly to a cursor movement key control system in a data input device such as a Japanese word processor.

[Conventional technology]

Conventionally, keyboards for data input devices to which this type of cursor movement key control method is applied include hard-sense keyboards that detect human force on keys using hardware, and soft-sense keyboards that detect keystrokes using software.

In the cursor movement key control method of a hard-sensing keyboard, the cursor movement keys are sensed by the hardware, so even if two cursor movement keys are pressed at the same time, only the key code of the cursor movement key that was pressed first is used. It was being output. In addition, in the cursor movement key M control method on a soft sense keyboard, by alternating the sensing order of the cursor movement keys, if two cursor movement keys are held down at the same time, each key code is output in sequence. This made it possible to move the cursor in eight directions, including diagonal directions in addition to the four vertical and horizontal directions, but it was not possible to control complex cursor movement other than at a 45-degree angle.

[Problem that the invention seeks to solve]

The conventional cursor movement key control method described above has limitations in controlling cursor movement, so in data input devices where man-machine interface is important, such as Japanese word processors, it is difficult for users to move the cursor freely. CRT (Cathode Ray T)
There is a drawback that the operability is felt to be poor when positioned at an arbitrary location on a display device such as an UBE.

Even if a pointing device such as a mouse can be used, data input devices that rely primarily on keyboard input, such as Japanese word processors, require instructions to move the cursor from the keyboard to prevent hands from leaving the keyboard. Therefore, there is no difference in the existence of the above-mentioned drawbacks.

In view of the above-mentioned points, an object of the present invention is to enable the user to freely move the cursor and position the cursor at any location on the display device, and to enable the user to move the cursor freely and to position the cursor at any location on the display device. An object of the present invention is to provide a cursor movement key control method that can improve the operability of a data input device.

[Means for solving problems]

The cursor movement key control system of the present invention has four force movement keys that respectively instruct the movement of the cursor on the display device in four directions: up, down, left and right, and when a key is pressed, make data is output and when the key is released. A keyboard that outputs break data when pressed, stores key code information based on the output data from the keys on this keyboard, and stores the key code information based on the output data from the keys on this keyboard. a controller for controlling movement of a cursor on the display device based on order and time difference.

(Function) In the cursor movement key control method of the present invention, the keyboard has four cursor movement keys that instruct the movement of the cursor on the display device in four directions, up, down, left, and right, and outputs make data when a key is pressed. When a key is released, break data is output, and the controller stores key code information based on the output data from the keys on the keyboard. The movement of the cursor on the display device is controlled based on the order of presses and the time difference.

〔Example〕

, Next, the present invention will be explained with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of the cursor movement key control method of the present invention.6 The cursor movement key control method of this embodiment includes a keyboard 1 having cursor movement keys 10, and a keyboard control program. Part 3. CRT
The control unit 4 and the upper application program 5 (
A controller 2 that not only controls the movement of the cursor 60 on the CRTS but also performs other processing such as data editing.
and a CRT 6 on which a cursor 60 is displayed.

Referring to FIG. 2, the output data from keyboard 1 when a user presses a key on keyboard 1 is called make data, and is called make data. The output data from the keyboard 1 when the key is restored to the raised state (hereinafter the same) is called break data.

Referring to FIG. 3, cursor movement keys 10 (hereinafter referred to as 4
When specifying each of the cursor movement keys 10, "Key ↑", "Key ↓", "Key →" and "Key -
The make data and break data for make data (indicated by ``0'') are assigned 8 pinto data in which the first bit is indicated by ``0'' in the case of make data, and 8 pinto data in which the first bit is indicated by rlJ in the case of break data. ing.

Referring to FIG. 4, the make data and break data of the cursor movement key 10 can be expressed in hexadecimal as shown.

As shown in Figure 5, the process from the occurrence of an interrupt based on make data (hereinafter referred to as a make interrupt) by any key on the keyboard 1 to the occurrence of an interrupt based on break data (hereinafter referred to as a break interrupt) by that key is shown in FIG. If the elapsed time t exceeds a preset reference time T, that is, if the user continues to press the key beyond the reference time T, the keyboard control program section 3 prevents the key from being pressed continuously. The information shown is passed to the higher-level application program 5.

As shown in FIG. 6 (al), if the user presses the key ↓ and a make interrupt occurs, then the key - is pressed and a make interrupt occurs after an elapsed time t within the reference time T has elapsed. The keyboard control program unit 3 alternately and continuously outputs key codes indicating the key ↓ and the key → to the upper application program 5.

Based on these key codes, the upper-level application program 5 outputs a command to the CRT control unit 4 to instruct the position of the cursor 60 on the CRTS, and the CRT control unit 4 moves the cursor 60 on the CRTS based on this command. 60 is moved to the lower right 45 degrees (8th
(See figure (a)).

As shown in Figure 6) and lc), the reference time T after the user presses the ↓ key and a make interrupt occurs.
If the key → is pressed and a make interrupt occurs after an elapsed time t exceeding Then, the keyboard control program section 3 inserts and outputs one key code for each key ↓ to the upper application program 5.

For example, as shown in FIG. 6 (bl), [1/τ]=1([
] indicates a Gauss symbol), the keyboard control program unit 3 inserts one key → key code for every two keys ↓ key code and sends it to the upper application program 5. (see Figure 7 (al)).

The upper application program 5 outputs commands to the CRT control unit 4 based on these key codes, and the CRT control unit 4 outputs commands to the CRT control unit 4 based on these commands.
The upper cursor 60 is about 27 degrees (j a n” (1
/2)) (see Fig. 8 fbl).

In addition, as shown in FIG. 6(C), when [1/τ]=2, the keyboard control program section 3 inserts one key → key code for every three keys ↓ key code. It is output to the higher-level application program 5 (see FIG. 7 fbl).

The upper application program 5 outputs commands to the CRT control unit 4 based on these key codes, and the CRT control unit 4 outputs commands to the CRT control unit 4 based on these commands.
The upper cursor 60 is approximately 18 degrees (t a n” (1
/3)) (see Fig. 8 (C1)).

In the above description, the combination of the ↓ key and the - key was described, but similar processing is performed for the other 100 cursor movement key combinations. However, since the combinations of keys ↓ and ↑ and combinations of keys → and keys ← have no meaning in compositing, they are treated as "contradictory combinations" and the above-mentioned processing is not performed.

Referring to FIG. 9, the processing of the keyboard control program unit 3 in the controller 2 includes interrupt type determination step 1.
1, one type of key determination step 12, make cursor movement key existence determination step 13, make interrupt determination step 14, contradictory combination determination step 15, elapsed time storage step 16, and second cursor movement key storage step 17, key output counter O setting step 18, key code output step 19, key output counter l
an addition step 20, a make interrupt determination step 21, a timer counter 0 setting step 22, a step 23 for storing one type of cursor movement key, a step 24 for determining the existence of a cursor movement key during make, a step 25 for determining the elapse of the reference time T, The process includes a multi-touch determination step 26, a key output counter value determination step 27, and a make-up cursor movement key memory clear step 28.

Next, the operation of the cursor movement key control method of this embodiment configured as described above will be explained.

When an interrupt occurs in the controller 2, in order to identify the type of interrupt, it is determined whether the interrupt is based on a keystroke on the keyboard 1 (<key press and release) or a timer (not shown) in the controller 2. interrupt(
Interrupts that occur periodically (hereinafter referred to as timer interrupts)
It is determined by the keyboard control program unit 3 (step 11).

If this determination indicates that the interrupt is based on a keystroke on the keyboard 1, it is further determined whether or not the interrupt is based on a keystroke on the cursor movement key IO (step 12).

If this determination indicates that the interrupt is based on the pressing of the cursor movement key 10, there is a cursor movement key 10 being made (the cursor movement key 10 being pressed by the user) at the time the interrupt occurs.
It is determined whether or not (step 13).

If it is determined that there is a cursor movement key 10 being made, it is determined whether the current interrupt is a make interrupt or a break interrupt (step 14).

If this determination indicates a make interrupt, it is determined whether the press of the cursor movement key 10 that caused the make interrupt is a combination consistent with the press of the cursor movement key 10 that is already being made. (Step 15).

If the combination is consistent with this determination, the elapsed time t from the occurrence of the make interrupt for the cursor movement key lO that is already being made to the occurrence of the current make interrupt.
is stored in a memory (not shown) in the controller 2 by the keyboard control program section 3 (step 16),
Furthermore, the make data of the current (i.e. second) cursor movement key 10 is stored in the memory (step 1).
7).

Next, when the second make interrupt occurs, a key output counter (not shown) in the controller 2, which determines the output ratio of information based on the two cursor movement keys 10, is set to 0. (Step 1), the key code of the cursor movement key 10 pressed for the second time is output to the upper application program 5 (Step 19), 1 is added to the key output counter (Step 20), and the keyboard control program section 3 The process ends.

If the combination in step 15 is inconsistent,
The memory of the make data of the cursor movement key 10 that is being made is cleared (step 28), and the processing of the keyboard control program section 3 ends.

If it is determined in step 14 that it is a break interrupt,
Since this indicates a break interrupt for the cursor movement key 10 being made, the memory of the make data for that cursor movement key 10 is cleared (step 28), and the processing of the keyboard control program unit 3 is completed.

Cursor movement key 10 during makeup as determined in step 13
If no interrupt exists, it is determined whether the current interrupt is a make interrupt or a break interrupt (step 21).

If this determination indicates a make interrupt, a timer counter (not shown) in the controller 2 is set to O, and a timer counter (not shown) in the controller 2 is set to O to measure the elapsed time t.
(not shown) is restarted from 0 (step 22).

Next, the cursor movement key I that caused the make interrupt
O types (i.e., each cursor movement key 10
make data) is stored in the memory in the controller 2 (step 23), the key output counter is set to O (step 18), and the key code of this cursor movement key IO is output to the upper application program 5 (
Step 19), 1 is added to the key output counter (step 20), and the processing of the keyboard control program section 3 ends.

If it is determined in step 21 that it is a break interrupt, it should not exist, but if this state has occurred due to a hardware malfunction, the cursor movement key lO that is being made by mistake should not be made. The data storage is cleared (step 28), and the processing of the keyboard control program section 3 is completed.

If it is determined in step 12 that the interrupt is not based on the depression of the cursor movement key 10 but on the depression of another key on the keyboard 1, control is transferred to processing based on that key.

If it is determined in step 11 that it is a timer interrupt, it is determined whether or not there is a cursor movement key 10 being made at the time the timer interrupt occurs (step 24).

If it is determined that the cursor movement key 10 being made does not exist, the processing of the keyboard control program section 3 is immediately terminated.

Cursor movement key 10 during makeup as determined in step 24
If there exists a make interrupt for that cursor movement key 10, it is determined whether or not the elapsed time t since the occurrence of the make interrupt for that cursor movement key 10 has passed the reference time T (step 25).
).

If it is determined that the elapsed time t has not exceeded the reference time T, there is no need to output the key code, and the processing of the keyboard control program module 3 ends.

If it is determined in step 25 that the elapsed time t has exceeded the reference time T, it indicates that two consistent cursor movement keys 10 were pressed at the time the timer interrupt occurred.
(hereinafter referred to as multi-touch) is determined (step 26).

If this judgment indicates that only one cursor movement key 10 is being pressed instead of multi-touch (referred to as single-touch as opposed to multi-touch), the key output counter is set to 0 (step 18), and single cursor movement key 10 is pressed. The key code of the touched cursor movement key lO is output to the upper application program 5 (step 19).
), and 1 is added to the key output counter (step 20).
, the processing of the keyboard control program section 3 ends.

If it is determined in step 26 that the touch is multi-touch, it is determined whether the value of the key output counter is larger than the value of [1/τ+1 (step 27).

If the value of the key output counter is larger than the value of [1/τ] + 1 in this judgment, the value of the key output counter is set to O (step 18), and the cursor movement key pressed the second time in multi-touch 10 key codes are output to the upper application program 5 (step 19).
, 1 is added to the key output counter (step 20),
The processing of the keyboard control program section 3 ends.

In the judgment in step 27, the value of the key output counter is [t/τ
]+1, the key code of the cursor movement key 10 pressed the first time during multi-touch is output to the upper application program 5 (step 19), and 1 is added to the key output counter (
In step 20), the processing of the keyboard control program section 3 ends.

Upon receiving the key code of the cursor movement key 10, the host application program 5 passes a command to the CRT control unit 4 to instruct the cursor movement direction corresponding to the key code of the cursor movement key 10. Now, based on that command, move cursor 6 on the CRT 6.
Movement of 0 is controlled.

To specifically illustrate the above operation by taking as an example the case where a cursor movement key is pressed ([t/τ] = 2) as shown in Figure 6 (C1), ↓
0IH (see FIG. 4) is output from the keyboard 1 as the make data, and a make interrupt is generated based on this, and steps 11-12-13-21-2 in FIG.
Processing and determination are performed in the order of 2-23-18-19-20, and information based on the press of the key ↓ is passed from the keyboard control program section 3 to the CR'l' control section 4 via the upper application program 5. Under the control of the CRT control unit 4, the cursor 60 on the CRTS is moved downward by one line.

Here, assuming that two timer interrupts occur after the reference time T has elapsed before the second key is pressed, when these timer interrupts occur, step 11- in FIG. 24-25-26-18-19
Processing and determination are performed in the order of -20, and repeat information based on the successive presses of the ↓ key is passed from the keyboard control program section 3 to the CR'T control section 4 via the upper application program 5. The control moves the cursor 60 on the CRTe downward one line each. In this way, the keyboard control program section 3 outputs a sexual assault based on the pressing of the key ↓ a total of three times.

If the - key is pressed a second time after the ↓ key is pressed and before the third timer interrupt occurs, 02H (see Figure 4) is output from the keyboard 1 as make data. A make interrupt is generated based on the step 11-12-13-14-15-16 in FIG.
Processing and determination are performed in the order of -17-18-19-20, and information based on the press of the key is passed from the keyboard control program section 3 to the CRT control section 4 via the upper application program 5. Under the control of , the cursor 60 on the CRT 6 is moved one digit to the right (at this time, the value of the key output counter is set to 1).

When the third timer interrupt occurs after the ↓ key is pressed, step 11-' in FIG.
Processing and determination are performed in the order of 24-25-26-27-19-20, the value of the key output counter becomes 2, and information based on the key ↓ is output.

In response to the occurrence of the fourth timer interrupt after the key ↓ is pressed, step 11-24-25-
Processing and determination are performed in the order of 26-27-19-20, the value of the key output counter becomes 3, and the information on the key output is output.

Furthermore, when the timer interrupt occurs for the fifth time after the key ↓ is pressed, the same processing is performed as long as the touch is multi-touch, and the value of the key output counter becomes 4.

For the sixth timer interrupt after the key ↓ is pressed, step 11-24-25-
Processing and judgment are performed in the order of 26-27-18-19-20 (the value of the key output counter is larger than 3 of [1/τ] + 1), and the information based on the key is input to the keyboard-based jll program. It is output from the unit 3 to the CRT control unit 4 via the upper application program 5, and the CR
Under the control of the T control unit 4, the cursor 60 on the CRT 6 is moved one digit to the right.

This kind of output mode after the key ↓ and key → becomes multi-touch corresponds to the output mode shown in FIGS. will be moved.

〔Effect of the invention〕

As described above, the present invention provides a display device that is controlled by a controller based on the manner in which the cursor movement keys on the keyboard are pressed, that is, the combination of the presses of two cursor movement keys in the up-down direction and the left-right direction, and the time difference between the presses. By freely controlling the direction of movement of the upper cursor, it is possible to improve the operability of a data input device such as a Japanese word processor.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. FIG. 2 is a diagram showing type B of data output from the keyboard to the controller in FIG. 1. Figure 4 shows the hexadecimal representation of the 8-bit data shown in Figure 3. Figure 5 shows the keyboard in Figure 1. Figure 6 shows an example of the relationship between the elapsed time between make data caused by pressing a key and break data caused by the brocade of the same key and the reference time. Figure 6 shows an example of person a in which the two cursor movement keys are multi-touched. Figure 6 (C) is a diagram showing an example of a mode in which keys are multi-touched, and when two cursor movement keys are multi-touched when the elapsed time is greater than the reference time and is 2 to 3 times the comparison time. Figure 7+8) is a diagram showing an example of how the cursor movement key is multi-touched as shown in Figure 6(b). Figure 7 shows the order of the cursor movement keys in which key codes are output. Figure 8+a) shows the CRT in Figure 1 when the cursor movement keys are multi-touched as shown in Figure 6 1cI.
Figure 8 (Tb), which shows the manner in which the cursor moves above, shows the manner in which the cursor moves on the CRT in Figure 1 when the cursor movement key is pressed multi-touch as shown in Figure 6). FIG. 8(C) is a diagram showing how the cursor moves on the CRT in FIG. 1 when the cursor movement key is pressed in multiple directions as shown in FIG. 6 1cI.
FIG. 9 is a flowchart showing the processing of the keyboard control program section in FIG. 1. In the figure, 1...Keyboard, 2...Controller, 3...Keyboard control program section, 4...CRT
Control unit, 5... Upper application program, 6...
・CRT. 10... Cursor movement key, 60... Cursor.

Claims (1)

[Claims] It has four cursor movement keys that respectively instruct the movement of the cursor on the display device in four directions: up, down, left and right, and outputs make data when the key is pressed and outputs break data when the key is released. A keyboard that outputs , key code information based on the output data from the keys on this keyboard is stored, and it is based on the pressing order and time difference of two cursor movement keys that are not in opposite directions among the four cursor movement keys. A cursor movement key control method, comprising: a controller that controls movement of a cursor on the display device;